Mixing-machine.



13 A. BUSH.

MIXWG MACHINE. aPPucumi HiED ran. a. was.

Patented Jan. 9, 191? 2 SHEETS-SHEET h R My? TQR J NIZYE? C. A BUSH.

MIXING MACHINE. APPLICATIQN mm Fix. 5. ms.

Patented Jan. 9, 1917.

2 SHEETS-SHEET 2- CHARLES A. iausn, or osnxosn,

COMPANY, or osnxosn,

WISOON SIN ASSIGNOR '10 OSHKOSH MANUFACTURING WISCONSIN, A CORPORATION OF WISCONSIN.

mxmo-Macmnn.

Specification of Letters Patent.

Patented Jan. 9, 1917.

Application filed February 8, 1915. Serial No. 6,462.

To all whom it may concern Be it known that I, CHARLES A. Even, a citizen of the United States, andresident of Oshkosh, in the county of Winnebago and State of Wisconsin, have invented new and useful Im rovements in Mixing-Machines, of which the following is a description, reference being had to the accompanying drawings, which are a part of iis specification.

The invention relates to ixing machines.

In mixing machines of large capacity it is necessary to provide 'means for lifting the discharging chute by power.

The object of the present invention is to ermit the raising and lowering of the chute iiy mechanism drivenfrom the same shaft as that which drives the revolving mixing chamber.

The invention further designs to provide a new and improved form of power operated mechanism for operating the discharging chute of a mixing machine. I

The invention consists in the several features hereinafter set forth and more particularly defined by claim at the conclusion hereof.

In the drawings, Figure 1 is an end view of a mixing machine equipped with the devices em odying the invention; Fig. 2 is a side view thereof (parts being broken away); Fig. 3 is a detail view of the power operating mechanism as seen from the side adjacent the machine (parts being shown in section).

The machine to which the improvements are applied is of usual construction comprising a mixing chamber 4.mounted upon the frame 5 and adapted to be driven by achain (not shown) operatively connecting it to a sprocket 6 mounted upon a. shaft 7 journaled in bearings 8, 9 and 10 formed in the support 11 mounted upon the frame 5. The shaft 7 has also mounted thereon a gear 13 around which a sprocket chain (not shown) passes leading from the engine mechaiiism whereby the shaft 7 is rotated. This is all of well known construction and power operating means are provided for operating the discharging chute from the power shaft 7 at predetermined intervals. This power operating vmeans comprises a worm 14.

loosely mounted upon the power shaft 7, means for operativelg connecting said worm 14 to rotate with sai shaft, a gear wheel 15 in mesh with the worm 14 and mounted upon and slidable thereon, ed fast upon the shaft 7 The sleeve 35 has which is a shaft 16 journaled in bearings on thesupport 11. This shaft carries a crank arm 17 whose free end is pivotally connected to one end of a link 18 by a pin 19. The other end of the link is, pivotally connected to the forked end of a crank 20 by a pin 21 said crank 20 being mounted upon a longitudinally extending shaft 22 journaled in bearings in uprights 23 of the frame 5. This shaft 22 carries a yoke member 24 between thebearings on the uprights 23 and a lever arm 25 is pivotally secured at one end to the arms of sai yoke member by a pin 26. g The other end of the lever 25 is pivotally secured by a pin 26 to a plate 27 which is fastened to the chute 28. The chute 28 is pivotallv secured to the slop guard plates 29 by mechanism shown but not described which plates are secured to the uprights 23 by fastening means passing therethrough and through lugs 30 on said plates.

From the above description it follows that when the shaft 7 is rotated the worm 14 being connected will rotate the gear .wheel 15, shaft 16 to turn the crank 17 which. will move the link 18 and crank 20 to turn the shaft 22 and consequent] the yoke member 24 which in turn will move the lever arm 25 upwardly or downwardly and consequently the end chute 28 to which it is connected and for every one half revolution of the worm gear the discharge chute is changed from a mixing to a discharging position.

he means for operatively connecting the worm 14 to the shaft 7 com rises a friction disk 31 secured thereto and liiiving an annular recess 32 therein adapted'to receive an annular friction block 33 suitably secured to a disk 34 which is keyed to a sleeve 35 the sleeve being mounta threaded end 36 upon which a threaded collar 37 is mounted and adog 38 is pivotally secured at the lower portion of the colar. The dog 38 is in engagement with the side of the disk 34 and the movement of the dog will result in alloniitudinal movement of the disk 34 to bring t into engagement'with the This movement of the-dog is regulated b a sliding collar 39 mounte upon the aha 7 and carrying a collar 40 int readeden gement therewith ivotall secured to the collar 89 to ihe col ar 89 is also, provided with dog 33.

and connected by a fin 41 e friction block 83 friction disk 81.'.

a groove 42 for receiving a forked lever (not shown) of usual construction to reciprocate said collar upon the shaft to thereby move the dog into or out of engagement with the disk 34 to operate the clutch and thereby connect the worm to the drive shaft 7.

The operation of the device in brief is as follows:-'lhc operator throws in the clutch comprising the friction disk 31. and block 33 thereby causing the worm 14 to rotate with. the power shaft 7. The rotation of the worm 14 as previously described causes the rot-ation of the shaft 22 and the linkage connected to said shaft and the chute causes the chute to move upwardly and downwardly for each revolution of the worm gear 15.

In mixing macl'iines of the character described, it is often desired to discharge from the mixing chamber small quantities of ma terial, such as wheel-lmrrow loads, at regular intervals, instead of discharging all of the material at one time. This is easily accomplished with the herein described construction, by simply throwing in the clutch to the power shaft and allow the chute mechanism to operate continuously. Thus as long as the clutch is in engagement, the crank-arm 17 will continue to rotate and consequently reciprocate the links and arms connected to the chute, and the chute will move continuously from one inclined position to the other. Owing totthe wormgear ingthe movements of the chute are slow, hence the discharge from the drum or chamher will commence shortly after the chute reaches a horizontal position in its downward movement, and will continue to disthe drive shaft.

charge from that time until it descends to full discharge position and returns to the initial discharging position. The worm- 40 gearing for operating the chute also forms a self'locking mechanism, whereby the chute will retain any adjusted position when the clutch is disengaged.

The invention thus exemplifies a power operated mechanism for operating the discharging chute connected to the drive shaft and means for throwing said power operated means into or out of engagement with What I claim as my invention is In a mixing machine,a mixing chamber,

a drive shaft mounted for continuous rotation in parallel relation to saidmixingchamher, a discharge chute pivoted adjacent to one end of said mixing chamber, a rock shaft having oppositely extending crankarms mounted below said chute and at rightangles to said drive shaft, a worm mounted loosely on said driveshaft, a clutch for connectil said worm to said drive-shaft a horizki itally reciprocating link operated by said worm to operate said rock-shaft, and a vertically reciprocating link connected to said chute and operated by said r0ck-sl1aft for reciprocating said chute vertically to discharging and nolrdischarging positions.

In testimony whereof, I atlix my signature in presence of two witnesses.

F. W. HUELsTEn, L. (I. CROSBY. 

